X., and Huang, T. (2007), “Trace Ratio vs. Ratio Trace for Dimensionality Reduction,” in 2007 IEEE Conference on Computer Vision and Pattern Recognition, Minneapolis, MN: IEEE, pp. 18. [2] Petersen, K., and M. S. Pedersen. (2012) “The matrix cookbook,” Version November 15 2012. [3] ਫ݈࣍. (2010) “Χʔωϧ๏ೖ -ਖ਼ఆΧʔωϧʹΑΔ σʔλղੳ-,” ேॻళ.